US 3,037,426↗1962Assignee: Les Appareils de Precision KinoptikInventors: Edgard HuguesKINOPTIK SUPER-TEGEA 1.9mm f/1.9 FISHEYE— 7 ELEMENTS / 7 GROUPS, 3 DIOPTRIC SYSTEMSKINOPTIK TEGEA 5.7mm f/1.8— 12.70 mm FORMAT DIAGONAL, 6 ELEMENTS / 6 GROUPSKINOPTIK TEGEA 9.8mm f/1.8— 27.20 mm FORMAT DIAGONAL, 9 ELEMENTS / 6 GROUPS